- date(s): 
- 1948-1952
- creator(s): 
- Edwin P. Ambler (Saint Louis, Mo.)
- subject(s): 
- Business; Industries; Finance; Contractors; Contract labor; Heating; Heating and ventilation industry
- place(s): 
- United States; Missouri; St. Louis City, St. Louis
- type(s): 
- Checkbook; Item
 
				    
				        
				        
				            