| NAME | MATCH NR. |
DESCRIPTION |
| Alro 04 - 2220 Radio Large PTT | 0088 | Log/tech disc of plastic, 118x3.2 mm (1972) Front Scales: Cа and Lа N2а Nа =а Nа khz Back Scales: nulniveauspanningа Cа =а Decibel |
| Alro 100 R | 0061 | Generic disc of metal, 125x135x115 mm Front Scales: N2а Nа =а Nа N2а Rа N3а L |
| Alro 1010 Bureau model | 3107 | Financial disc of metal, 190x10 mm Front Scales: 1)а 2)а 3) |
| Alro 1010 Commercial | 0085 | Log/finan disc of metal, 125x135x12 mm Front Scales: Scale from 1.000-10.000 |
| Alro 1010 Commercial System Hatex | 0086 | Log/finan disc of metal, 125x135x12 mm Front Scales: Cа =а Dа 1) |
| Alro 200 R | 0066 | Generic disc of metal, 125x135x11.5 mm Front Scales: Sа Tа S&Tа N2а Nа =а Nа N2а Rа N3 |
| Alro 300 D | 0077 | Generic disc of metal, 125x135x12.4 mm Front Scales: Lа Cа COSа =а Dа Sа N2а N3а LL3а LL2а LL1 |
| Alro 400 D | 0079 | Generic disc of metal, 125x135x11.5 mm Front Scales: Sа Tа Rа N2а Nа =а Nа N2 аN3а LL3а LL2а LL |
| Alro 600 E | 0082 | Electrical disc of metal, 125x135x11.5 mm Front Scales: n2а Cа =а Dа n2а LLа Dynamo-Motorа Voltа па L |
| Alro 746 Radiotechniek | 0083 | Log/tech disc of metal |
| Alro Artillery ST 9 - 430/2 rule no. 1 | 0429 | Military rule/cursor no slide of plastic, 314x61x2 mm Front Scales: 1), Back Scales: 2) |
| Alro Artillery ST 9 - 430/2 rule no. 1 for 2 and 3 | 0430 | Military slide rule of plastic, 313x61x2 mm Front Scales: 1), Back Scales: 2) |
| Alro Beton | 0031 | Concrete disc of metal, 122x5 mm |
| Alro Bureau Model Spring load | 3519 | Log/tech disc of plastic/metal, 190x20 mm |
| Alro Carborundum | 0033 | Technical disc of plastic, 120x185 mm |
| Alro Cobol Analyser | 0035 | Technical disc of plastic, 190x3 mm Front Scales: Many scales, Back Scales: Many scales |
| Alro Commercial System Ha Tex | 5731 | Log/finan disc of metal, 125x135x12 mm Front Scales: Cа =а Dа Pound |
| Alro Computer Disc P 300 Series | 0036 | Other disc of plastic, 245x2.2 mm |
| Alro De Muiderkring | 0050 | Log/tech disc of plastic, 60x4 mm Front Scales: 1)а 2)а N2а Nа =а Nа 3)а 4) Back Scales: V1)а V2)а W1)а W2)а 5) |
| Alro De Muiderkring Large | 5785 | Generic disc of metal |
| Alro Den Haag | 0043 | Generic disc of plastic, 60x4 mm Front Scales: N2а Nа =а N, Back Scales: Nа N3 tgа sin |
| Alro disc | 0058 | Generic disc of metal, 125x135x12.4 mm Front Scales: Cа =а D |
| Alro disc | 0059 | Generic disc of metal, 120 mm Front Scales: 1)а =а 2) |
| Alro Geluidsniveauverschil Van Gevels | 0038 | Technical disc of plastic, 134x159 mm (1981) |
| Alro Haaksbergen | 0042 | Generic disc of plastic, 60x4 mm Front Scales: N2а Nа =а N, Back Scales: Nа N3а TGа SIN |
| Alro Holland Ericsson | 3406 | Generic disc of plastic, 60x4 mm Front Scales: N2а Nа =а N, Back Scales: Nа N3 tgа sin |
| Alro Kipp Delft Holland | 0046 | Log/tech disc of metal, 98x5 mm Front Scales: Cа =а D, Back Scales: 1)а =а 2) |
| Alro KLM Gasoline and Oil conversion factors | 0047 | Conversion disc of metal, 142x8 mm |
| Alro Laboratorium Voor Bloembollen onderzoek Lisse | 0032 | Other disc of plastic, 120x120x1 mm |
| Alro Lettergieterij | 0048 | Generic disc of plastic, 60x4 mm Front Scales: Cа =а D, Back Scales: 1)а 2)а 3)а 4) |
| Alro Lettergieterij Amsterdam | 3520 | Generic disc of plastic, 60x4 mm |
| Alro logo CJD | 0034 | Generic disc of metal |
| Alro Medisch Geneesmiddelen Interactie. | 0039 | Medical disc of plastic, 140x1.8 mm |
| Alro Military disc | 0049 | Military disc of metal, 132x8.5 mm Front Scales: tgа sin-tgа sinа C1а 0/00а 1)а Cа =а Dа 2)а A |
| Alro Philips Calender disc | 0045 | Calender disc of metal, 120x4 mmа (1935) Front Scales: 1)а =а 2) |
| Alro Philips CJD | 3080 | Electrical disc of metal, 125x135x12 mm Front Scales: 1)а 2)а 3)а =а 4)а 5)а 6)а 7) Back Scales: In lid: 8)а 9)а 10) |
| Alro Philips Telecommunication | 0056 | Log/tech disc of plastic, 60x4 mm Front Scales: 1)а 2)а N2а Nа =а Nа 3)а 4) Back Scales: 5)а 6)а =а 7)а 8) |
| Alro Prototype | 0054 | Generic slide rule of plastic, 294x36x6 mm Front Scales: 27cmа /а Kа Aа =а Bа CIа Cа =а Dа L Back Scales: =а Sа S&Tа Tа = |
| Alro Radio 04 - 2220 Small PTT | 3411 | Log/tech disc of plastic, 80x6 mm Front Scales: Cа Lа N2а Nа =а Nа nа l Back Scales: 1)а Cа =а Decibel |
| Alro Shell | 0055 | Log/tech disc of plastic, 185x3 mmа (1962) Front Scales: 1)а =а 2)а 3)а 4)а 5) |
| Alro Spoorweglawaai 922130 | 0093 | Technical disc of plastic, 134x159 mm Front Scales: 1)а 2)а =а 3)а 4)а 5) |
| Alro Tires | 0027 | Technical disc of metal, 120x135x12 mm Front Scales: 1)а 2)а 3)а 4)а =а 5)а 6)а 7)а 8)а 9) |
| Alro type Go.A | 0040 | Generic disc of metal, 125x12 mm Front Scales: 1)а 2)а 3)а 4)а Cа =а Dа 5)а 6)а 7)а 8) |
| Alro Vaste en Beweegbare Bruggen | 3425 | Technical disc of bakelite/plastic, 135x6.5 mm Front Scales: Many scales, Back Scales: Many scales |
| Alro Vondelingenplaat | 0057 | Other disc of metal, 125x9 mm Front Scales: 1)а =а 2)а 3) |
| Alro WeR2 and 4 | 0063 | Generic disc of metal, 125x135x12.4 mm Front Scales: Aа Cа =а Dа Bа Recа N3а log |
| Alro WeR2 and 5 | 2697 | Generic disc of metal, 120x130x12 mm Front Scales: N2а Nа =а N2а Recа N3а log |