Rolleiflex and Rolleicord Shutter Speeds

Marked speed	Original 3.8 98737 Compur	1931 Baby 3.5 127594 Compur	Old Standard 3.5 529973 Compur	Rolleicord III 1187089 Compur Rapid	Rolleicord III 1306349 Compur Rapid	Automat MX 1248385 Synchro Compur
1	hesitant	1 1/3 seconds	1	1	1	1 1/3 seconds
2	hesitant	7/8 second	2	2	3	3/4 second
5	4	3	5	5	8	3
10	10	6	15	10	10	5
25	30	12	15	20	25	20
50	60	20	30	35	45	35
100	100	60	80	75	70	50
250				200	175	200
300	200	125	150
500			300	300	250	350

Calumet shutter speed tester. Multiple readings, averaged and rounded off.