Targa rear glass

Hi all, I have this Targa rear glass. It is in perfect conditions. The heater connections are intact on both sides.
Unfortunately I don’t think this is correct for my ‘73 targa as it is a single stage.
Can the experts of the forum here confirm?
If not correct for my ‘73 can you tell me what years is this correct for and what would be a reasonable selling price?
Thanks

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Can anyone help me ID what year is this glass for and what would be a reasonable sale price?
Thx

Anybody knows what year this rear targa glass is for?