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Old November 26, 2020   #5
agee12
Tomatovillian™
 
Join Date: Jul 2016
Location: Georgia
Posts: 170
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I typically add an extra ounce stamp when I am sending lots of small seeds or if there are a few large-ish seeds like okra or cucurbit seeds.


This is a good article:
https://about.usps.com/news/national...5/pr15_035.pdf
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