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This store is operated by One Mastery Initiative, Inc., one of eBay’s trusted nonprofit partners
One Mastery Initiative, Inc.
The purpose of the organization is to provide a source of information, resources, content, and education on autism, developmental disorders, and behavioral disorders to parents, educators, and others affected.
About us
We are a nonprofit raising funds via eBay. We have limited funds and resources, but feel we are very competitive in terms of offerings, shipping, and payment options. Our offerings will grow substantially, on a weekly basis, as we continue to build our store.
My son and I am, personally, are novice stamp and postcard collectors. APS Member Number: 236761
Please check back often to see our new listings. We are constantly adding collectible items for you. A great review is always appreciated and really helps us.
Thank you and we greatly appreciate your consideration and support!
Nelson Acosta
Executive Director
One Mastery Initiative, Inc.
My son and I am, personally, are novice stamp and postcard collectors. APS Member Number: 236761
Please check back often to see our new listings. We are constantly adding collectible items for you. A great review is always appreciated and really helps us.
Thank you and we greatly appreciate your consideration and support!
Nelson Acosta
Executive Director
One Mastery Initiative, Inc.
Seller feedback (558)
- a***d (24)- Feedback left by buyer.Past monthVerified purchaseFast Shipping, great value, packaged carefully, accurately described. Recommended seller!
- 5***8 (2516)- Feedback left by buyer.Past 6 monthsVerified purchaseGreat service and price, as always, super fast shipping and well packed. Great service and communication. Fast response to emails. Great ebayer highly recommended. One of my favorite eBayers. Thanks
- r***9 (1801)- Feedback left by buyer.Past 6 monthsVerified purchaseThis order arrived in a carefully packaged big box. I look forward to hours sorting out the various stamps for those in excellent condition, to add to my personal collection. The stamps were well organized, as described in the offering, and the shipment arrived safely. Shipping costs were reasonable considering the size and weight. I have ordered from OMI Collectibles and Charity more than once, and would do so again.
- t***a (1039)- Feedback left by buyer.Past 6 monthsVerified purchaseStamps arrived very quickly, exactly as described and very well packaged for mailing. Top notch seller with a solid inventory of stamps, fair pricing and accurate description of items. Very real and professional. Purchase with confidence from this seller, I did and with great results. A++++ seller.
- j***a (41)- Feedback left by buyer.Past monthVerified purchaseEverything was amazing and as described. The product came on time and was packaged fairly well. The items were in good shape and the price was pretty reasonable.
- l***c (1835)- Feedback left by buyer.Past 6 monthsVerified purchaseI got the package today, on time, and it was safely and securely packaged. The stamp dealer sheets are exactly what was pictured in the offer, and I like them very very much. Worth every penny! Thank you for a smooth transaction.