The 101 Dummy is better in hand than the pics.
The chamber is plugged and no firing pin. Not sure if the ejector functions yet, no lever.
Aluminum frame, appears unfinished.
Barrel assembly is blued steel. Looks original. Marked as .22 magnum. 6 1/2" long. Standard 101 is 5 1/2".
Dummy mark font appears identical to Loggah's 101 mark.

[Linked Image from i.imgur.com]

"Every day above ground is a good day."