American Electric (Thomas & Betts)
Two Thomas & Betts Model 13s, the mini versions of the Model 25 (and Model 327).  They are capable of wattages up to 250 watts.
		A Thomas & Betts Model 25, 400-watt mercury vapor.  It is considered the midsize model in the classic lineup.  The Model 327 (which is the only one in the trio that's still being made) is the largest.
The above fixtures are the American Electric Model 125s.  The full-cutoffs to the left are 250-watt HPS, while the semicutoff to the right is 400-watt mercury vapor.  GE's M400, which has used this design since 1997, is often mislabeled as a 125.
	Two American Electric Model 113s, perhaps the most common small luminaire made today.  The one on the left is 175-watt mercury vapor, and the one on the right is 250-watt HPS.  The grinning refractors have become a trademark of the 113 and several other small luminaires.