I can’t back it up, but my guess would be the current location of 2621 Palisade Ave, and that it was there as late as 1957, as seen in this 1957 map from NYPL.
The shape on the map, as shown in the close-up on the right, seems to match the pic, and the geography certainly could be a match.
I’d love to find a pic to back this guess up, but haven’t been able to find one.