Many J.B. Miller Red Dot #10 combinations can be found in the old Reed Padlock Code Book. Unfortunately 248 is “missing”, the listing jumps from 247 to 249.
There are no numbers on the dial, the click feature being used. To use the combination turn either right or left to stop. Some of them stop when turned right and some left. Then start counting the clicks back and forth. Illustration:
#10-5124 Turn to stop then reverse five clicks. Reverse one click, reverse two clicks, reverse four clicks, pull out shackle. To lock, close shackle and turn knob.*
*from Reed Padlock Code Book, Vol. 2, Pg. M38
Pete Schifferli