1) Annealing oven 2) Annealing oven for glassware 3) Comic lew 4) Comic Lou 5) German teaching prefix 6) German surname 7) Glass oven 8) Glassmaking oven 9) Glassware oven 10) Long oven 11) Old-time comic Lew 12) Old-time comic Lou 13) Oven for annealing glass 14) Oven used to anneal glass 15) Specialty oven 
demonstration; usually part of the name of an elite formation used as or mobilized from instructional troops (e.g., Panzer-Lehr-Division).
[glassmaking] A lehr is a temperature-controlled kiln for annealing objects made of glass. The name derives from the German verb lehren meaning to teach and is cognate with the English lere also meaning to learn or acquire knowledge of (something). Rapid cooling of molten glass generates an uneven temperature distribution in the body of the...
Oven used for annealing
demonstration; usually part of the name of an elite formation used as or mobilized from instructional troops (e.g., Panzer Lehr).