Hi SlowBowke,
I believe that your Root Game Master bows are both early to mid 50's models. The first bow is a Root Game Master Deluxe and the second bow is a standard Game Master.
They are both pretty much the same up to the extra laminations which are a feature of the Deluxe model. According to their ad by Seattle Archery, "All Root recurves are available in the Deluxe model at $67.50. The Deluxe, overdraw type, center section is shown here."
The January 1957 ad shows exposed, multiple laminations on the belly of the bow. I am guessing that your bows are a little earlier since the lams are covered by glass.
It seems to me that they would expose the laminations later on as bows became fancier. As for the tips, if the customer is paying extra for belly laminations then why not add extra lams on the tips as well.
Just my thoughts, I hope that it helps,
Brad