Big Band - Small Band

Tony Martin Decca re-issue

Whence came this composite Tony Martin disc?

When I scanned this disc to put the label images on my blog, the scanner light shone thru the disc in a reddish glow; that's how thin the disc is. Does that mean it's vinyl?

original disc SettleCites:

3119A Tony Martin "Tonight" (Perfidia) 67438=A (1940-mar-31)
3119B Tony Martin "Fools rush in" 67440=A (1940-mar-31)

3403A Tony Martin w. orch conducted by Victor Young "Call of the canyon" DLA2146 (1940-sep-10)
3403B Tony Martin w. orch conducted by Victor Young "My next romance" DLA2131 (1940-sep-06)

Combined as "Fools rush in" & "My next romance", but with the differing catalogue #s on each side.