32. Plunging into envelopes
In today's episode, we'll be talking about stamps, erasable ink, and the history of envelopes. USPS Price Increase, First Class Letter going from 55 to 58 on August 29th:https://about.usps.com/newsroom/national-releases/2021/0528-usps-proceeds-with-request-for-postal-rate-change.htmhttps://en.wikipedia.org/wiki/History_of_United_States_postage_rates#/media/File:US_Postage_History.svghttps://about.usps.com/newsroom/national-releases/2021/0518ma-usps-announces-upcoming-stamp-dedications.htmhttps://about.usps.com/newsroom/national-releases/2020/1117-usps-announces-upcoming-stamps.htm https://www.fountainpennetwork.com/forum/topic/351973-erasable-fountain-pen-ink/http://letterlocking.org/categorieshttps://www.wsel.com/sites/default/files/uploads/pdfs/EMA_History.pdf