Name	Type	Photo	Match
Post 1410 Teledyne Post Simplex			3810
Post 1414 Teledyne Post Simplex			3811
Post 44BB-100 Simplex			3817
Post 44BB-140 Teledyne Post Simplex			3818
Sun Hemmi Ahrend Instruction rule	slide rule		2408
Sun Hemmi P 280	slide rule	P	2477
Sun Hemmi P 280 Ahrend	slide rule	P	2476
Sun Hemmi P 280 Ahrend Variant	slide rule	P	2478
Sun Hemmi P 281	slide rule	P	2481
Sun Hemmi P 281 Ahrend	slide rule	P	2479

Name	Type	Photo	Match
Sun Hemmi P 281 Ahrend Instruction rule	slide rule	P	2480
Sun Hemmi P 281 Ahrend Variant	slide rule	P	2482

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