I purchased an Altieri Custom Gig Bag for my Holton 5 valve Double Bell without a case a couple years ago.
Fit is very good and quality is excellent.
The Holton is 30 inches long and most standard gig bags are too short.
Jim Babbitt
Jim Babbitt
1960s 4 valve and 1971 3 valve Besson New Standards (Denis Wick 6BM) for regular playing
1936 Conn 5 valve 30I Double Bell (Bach 6-1/2AL) General Purpose Back -Up
1924 Buescher 5 valve (the Denis Wick is close) and 1940 Holton 5 valve (Bach 6-1/2AL) Double Bells for kicks.
1860s OTS Saxhorn when history is required (the Denis Wick fits)