Date: 1950's. Owned by Gary Sloane
The 32H was a "duo-bore" instrument, with a bore of 0.500" and 0.522", which in Conn terms is a #3 and (approximately) #3 1/2 bore. It was produced from 1934 to 1941, and reinstated from 1947 to 1958. This instrument was built during the second production period.
What Conn said in 1950:
The Burkle models are popular in in large organizations where great power and volume are paramount. Have [sic] unique tapered bore through bell, tuning slide, bell taper, hand slides and hand slide bow. This design produces big tone, accurate intonation and ease of response, especially in top register, making Burkles favorites of high note kings.
Narrow, light slides for fast execution. Two bore sizes: medium, 7-inch bell, 30H; large, 7½-inch bell, 32H. Both with long slide bearing for smooth 7th position, bell lock, slide lock, balancer, tuning in bell.
What Conn said in 1956:
Popular among powerful players, where great volume and power are paramount. Features "Duo-Bore"- with uniquely tapered large bore through hand slide bow, bell taper, tuning slide bow and bell. Especially fine performance and intonation in top register. Narrow, light Crysteel Airfloat slides bearing for smooth 6th and 7th position performance. Outside slide of special Conn bearing formula alloy. Length 45 3/4", weight 3 lbs. 5 oz., bell diameter 7 1/2". Outfit includes attractive Victor case, plus music lyre and mouthpiece.
Highly polished brass, attractive durable nickel trim, clear lacquered overall.