Hi Scott,

Thank you for contacting Mearto with your appraisal inquiry.
I have gone through all of my doll books and can't find that YG mark in any of them, which suggests that this was from a maker with a small production, possibly even a craft dollmaker. The body looks like rubber - strongly suggesting mid 20th Century.
Based on the photos and information provided, and subject to examination, this is:

A vintage youth rubber doll
unattributed maker, probably American, mid 20th Century
A young boy with reddish hair and blue eyes, white blouse, black/dark gray knickers and molded shoes and socks. Marked to the back YG
7 1/2 inches tall
CONDITION: appears to be in good condition
PROVENANCE: inherited
$50-75*
*represents a fair-market value for auction purposes; retail or asking price may vary.

Please let us know if you have additional items to appraise, and thank you again for using Mearto.