I just picked up my 4th load of 500 flashbulbs. I go though about 50-100 a month so this is a much needed supply. Unfortunately this time they came packed loose and a mix of types in one box. I sorted out the B type bulbs and now are faced with sorting out the 26's and 5's. the Sylvania bulbs are marked with the bulb model on the glass, but the G-E are not. Seems like there could be a mix of 5's and 26's and no way to designate which one are which other than to guess. The G-E Mfg. specs for each bulb states they they are the same physical size. Anyone have any ideas?