from the mid 1930s until the late 1950s. The vintage of yours will be determined by the model number. It's really a funny looking thing, isn't it. And not a very efficient cleaner!!
definitly 30s it had the worst cloth cord I have ever seen and it is barn fresh sunday I saw a barn sale and took a look it was calling to me thare is no model number but the guy had a hoover 102 and 105 so I took the 3 for $110 all the vacuums I have came with the vintage dirt how about you charles have you had this hapen
Check out the front cover, some reginas had the model number there. BTW, thats a Royal bag on the regina. Regina bags draped across the front of the handle much like the old Eureka bags did. I like those old Reginas. Great find!!