Sample 1:

Tag:

1952 date.

Buckle:

Buckle is removeable.

Buttons:

“Bachelor buttons” held in place with split ring (like keychain) and are removeable.

Pockets:

Layout is like standard Pattern 40 Battledress but in denim material.

Cuffs:

Inside:

Sample 2:

More well-worn than Sample 1. 

Tag:

1954 date.

Modifications:

Buckle and attachment system has been removed. Neck closure hooks moved to base of button opening to keep bottom closed. 

Buttons:

Original buttons replaced by sew-on buttons, likely of surplus origin by a civilian tailor.