That is a Telegames cart shell and it's definetely a reproduction that could have been made by Telegames, eColeco or numerous other people. The label suggests one of the first two and most likely Telegames.
That the seller lists it as a "novelty/repro cart" with label artwork so at odds with other Telegames releases suggests this is not original to Telegames. He/she took the effort to reproduce the manuals for the co-listed Bit/Telegames fakes (Tank Wars, Boulder Dash, Strike It, Cosmic Crisis) but not for this one, which is also cautionary. And strange, though I would imagine attaching a dummied Atarisoft manual to this listing would give the lie to the nature of this cartridge.
I'd strongly wager this is nothing more than a homemade fake. $70 + shipping is simply too ridiculous a price to pay to prove that incontrovertibly.
ETA: At least one person knows for certain what this is, but isn't saying: the seller. The outright CYA-ism of the one-line cartridge description reads that way to me. Perhaps I'm being unduly skeptical, but the offer strikes me as deliberately coy. The seller clearly knows which hard-to-find games to selectively market, while keeping mum about their origins in the hope potential buyers will supply their own wishful thinking. Maybe that's being too harsh about it.
Edited by mumbai, Thu May 10, 2018 9:07 AM.