Thanks to Lisa for sharing these pictures. The instrument is standard pitch. Looks like a good French Stencil clarinet.
This has those special metal tenon caps. Usually higher-end clarinet had this, so this may indicate that this was produced as an intermediate-level instrument.
OVERVIEW
Pitch: Bb
Key System: Boehm System
Maker: Malerne (?)
Brand Name: Charlain Deluxe
Place of Manufacture: France
Approximate Date: 1930s-1940s
Body Material: Wood
Bore Type: unknown
Key Metal: unplated?
Keywork Quality: unknown
Serial Number: unknown
Recommended For: beginner to intermediate (probably)
Value: up to $200