MediaWiki:Apihelp-query+alltransclusions-paramvalue-prop-ids
From TIAO's Wiki

10 PCS, 10cm x 10cm, 2 layers prototype for $38.80 shipped!
Adds the page ID of the transcluding page (cannot be used with $1unique).

10 PCS, 10cm x 10cm, 2 layers prototype for $38.80 shipped!