Some Diaplan reference numbers 

512834 Diaplan Stand 
512584 Turret 1x 
512841 Turret 0.8x 
514686 Lamp house 103 12V/100W 
513693 Universal Condenser UKO - achro 0.90 S1.1 
513595 Turret for Phase Contrast rings 
513698 Phase contrast ring 1 S1.1 
513699 Phase contrast ring 2 S1.1 
513700 Phase contrast ring 3 S1.1 
513701 Phase contrast ring 4 S1.1 
513702 Dark Field ring (dry) 
512815 Trinocular FSA/20 
512818 Trinocular FSA-GW-R 1.25x 
519813 Couple of oculars Periplan GF 10x/20M (high-point) 
519877 Couple of oculars Periplan GF 12.5x/20M (high-point) 
519888 Couple of oculars Periplan GW 8x/28M (high-point) 
519893 Couple of oculars Periplan GW 10x/26M (high-point) 
514093 Blue filter CB12 diam. 50 mm 
542131 Green filter diam.50 mm 
513106 Object micrometer 2mm / 200 divisions 
518017 PL 1.6/0.05 Objective 
519495 PL 2.5/0.08 
519690 PL APO 4/0.14 
519898 PL APO 6.3/0.20 
519518 PL APO 25/0.65 
519896 PL APO 25/0.70 
519833 PL APO 40/0.75 
519807 PL APO 100/1.32 Oil 
519450 PL APO 40/1.00 Oil