[sunpowerusa]

Can anyone tell me when this was made approximately? Looks like 4 small font digits it’s marked 4 on front for the facing and ebolin ….value? Thanks

 

[Reet McVouty]

According to this, sometime in the early 40's

Brilhart Mouthpieces - Theo Wanne

Besides making mouthpieces, Arnold Ross Brilhart also recorded about 30,000 records. His first recording was waxed in November 1921 with Yerkes' S. S. Flotilla Orchestra. He also recorded with The Dorsey Brothers Orchestra, Joe Venuti, Irving Mills, and Hoagy Carmichael. Brilhart used a...

theowanne.com

 

[pontius]

early 50's unless there were originally 5 or more digits, then it could be much later. Here is the best chart.

Brillys with serial numbers. Time Line

 

[pontius]

My guess is that there was originally 6 digits and they were the mm/dd/yy, so some time in 1976

 

[sunpowerusa]

Cool

 

[saxophender]

Going by the info on Theo Wanne's site, if the serial number is four digits it would be a Huntington era (1951-1954) piece. I don't think it's a 1976 date code - my understanding is that by the 1970s the date codes were only stamped on the LevelAir pieces. The Ebolins no longer had numbers at that time.