I'll sell these to my clients in quantity at a good discount -  i.e. $A150 a box of 1000 (larger discounts below). 

Or 3 boxes for $A400,  and 5 boxes for $A640.  (Postage on more than one box of 1000 within Australia is not much more than one box!  i.e. ONE box to Vic is $15, but FIVE boxes is only $25 to most Victoria postcodes!)

1,000 is easy to ship, as they come packed in 1,000 USA factory boxes, (with paper dividers each 100 if you want to sub-sell on ebay, etc) and a 1,000 box is about a kilo weight, so a good saving on post occurs that way.  

Prices have obviously crept up in recent times due to the newly weak $A as these are fully imported from USA, and shipping here is not cheap, and my next shipment will very likely be way higher priced than these, so buy now, and lock in today’s current price levels.

Maybe buy a few boxes and offer them to Stamp Club members to share the savings?

With glassines, having many more than you THINK you need will never be a bad idea is my guess!  I sell Lighthouse stockbooks by cartons of 10 only.  Many folks initally say they only "really" need 5 - but a month later are ordering another carton of 10.  See that offer here -   😊

www.glenstephens.com/lighthouse.html
 

All MY envelopes are made from transparent virgin 30 pound weight, heavy grade American Glassine, made in the USA.  Manufactured to exact American industry tolerances by the Westvaco/Cenveo brand, with un-gummed flaps, strong seams, and they use special anti-tarnish adhesive, which will not affect stamp contents long term.

CAUTION - someone tried to sell me “glassines” made in China, and you could near spit through the cruddy thin junky paper used - it was featherweight.  A perfect example of lower price NOT meaning a saving, as they were near useless in my view!  Probably made from cheap and highly acidic paper stock too - the mind boggles.

One chap I know mails his ebay items out in these American glassines, and writes catalogue number, and ebay lot number, and price on the outside with ball point pen - as per example shown above.

He also puts his discreet rubber stamp with ebay name and contact details on the back.  A very professional looking way to ship your stamps, and the recipient can track which ebay lot this was later on if needs be, and what Catalogue number it had.

At only cents each it is also FAR cheaper than a business card, and is positive long term advertising for you, as collectors NEVER throw away glassines!  Your name-stamp remains on that glassine forever.

Remember, very slight dampness incurred in the mail stream WILL cause mint stamps to partially stick to most stockcards etc.  Your postman's daily delivery sack having a little rain get in, or damp letters either side of yours, or a damp mail van, WILL see mint stamp stick on most cases.  I see that all the time.

Polished Glassine is a waxy type of water repellent and water resistant substance as we all know, and for slightly damp outer letters and envelopes, the stamps WILL generally be OK in glassine, and NOT be OK in black stockcards …. which cost many times more than these anyway.  For those in areas with high humidity, storing stock and duplicates in glassines is a sure way to minimise toning and rust, as the moist air from humidity does NOT get in.

As these come in a custom made factory box of 1000 to this size, it allows you to sort things by catalogue number in the box, and not have loose envelopes all over the place.