Just thought I'd pass on some information regarding completing customs labels when sending vintage razors etc overseas (or presumably even between states?).
I received an invoice from our local delivery office here in the UK - it was for unpaid VAT (tax) on a lot of razors I'd bought on Ebay that were sent from the US. The Customs had intercepted the package and held it for about 10 days before doing anything!
The seller had labelled the package as 'Men's Hair Removal Instruments' - so the Customs had thought they were new items and charged 15% VAT.
In the UK - antiques and collectables are rated at 5% though, so if he'd labelled the package as 'collectable razors' or 'vintage collectable razors' etc - then a very small amount - or even zero would have been charged.
So, if you are sending vintage razors anywhere, mark the label as such and it'll save a lot of hassle for the buyer.