Official Goldback.com exchange rate for 09/25/2023 is $4.05.

Best prices:

1 GB is $3.70 (check) https://defythegrid.com/product-category/gold/aurum/goldbacks

1 GB is $3.74 (credit card) https://finestknown.com/product/2020-1-utah-goldback-currency-1-1000-oz/

100 pack of 1GB is $364.32 at Oz Bullion

https://ozbullion.com/products/nevada-goldback-1-note-aurum-100-pack-24k-gold-bills-random-year