I have a pr of Brown glass limbs for a Groves 3 -piece recurve TD. Wedge looks like Bocote but I do not know what the core wood is. on the bottom limb is has "May III" 55# @ 28" and 62". Matching number on the limbs is B9471-7N and the other T9471-7N. Have no idea if these are specific to one riser or can be used with any Groves riser. When my father passed away he had a Groves TD bow which I sold several years ago not knowing he had a spare set of limbs. Anyone know if there are specific to one riser or can be used on any Groves TD recurve?