Weight or volume of 1 lot of gravel?

[Alchemist-2000]

I am going through an attic find that has both a gravel loader and unloader added to the basic set. I presume there was a bag of gravel with each of these but the gravel is now all together in one container. I am trying to determine if the current amount is close to the original 2 lots or if much of it was lost with use. Anyone know the weight or volume of one lot of Tyco gravel as shipped with these accessories?

 

[biddle]

I bought two of these 3461 Gravel Hopper sets back in 2022/2023 from Slot Car Central when they were 21.99 and I'm pretty sure this is the original bag, but not 100%. It weighs about 1/4 of an ounce which seems like a weight that production would have used .

1982 TYCO US-1 TRUCKING Slot Car GRAVEL HOPPER 3461 MIB

www.slotcarcentral.com