So This RN Thing

A lot of clothes manufactured in the US have either a WPL (Wool Product Label) or an RN number on the label - and these numbers can help, along with our other tools, to narrow down a date of a company.

The WPL numbers were issued by the FTC between 1941 and 1959 - so if you find an item with a WPL it means that the company that made it started between those years. It does NOT mean that your item is that old however, as the company may still be in exsistance and using the same WPL.

The same goes for RNs - these were first issued between 1952 and 1959 - after 1959 RN numbers completely replaced the WPLs.

There's a great entry about RNs and WPLs on The Vintage Pavement - Subhadra explains it really well, and has a great mathematical formula for cracking the code.

Also - check out Ikwewe's guide to RNs, WPLs and CAs - The woman is brilliant.

If your item only has an RN or WPL number and no other labels - you can find out which company owns the number here - and then use TESS to find out more about them.

See how it's all coming together?

:)

Know your Materials

Fabric is another great tool when it comes to dating a vintage piece. As well as certain textiles being fashionable (for example, Rayon in the 40s), some fabrics weren't even around until relatively recently.

Of course in order to be able use fabric as a clue to dating, you have to know what it is. Content labeling in the US became law in 1960 with The Textile Products Identification Act, which required clothing to state the percentage of each fabric used, but this only applies to commercial products.

So if you find something that's pre 1960, home sewn, or simply missing it's label - you'll need some other tools.

This website is great for identifying fabrics, weaves and finishes by sight and touch:

http://www.fabrics.net/

And if you want to be certain - you can always do a burn test.

Once you know what the fabric is, check out these links:

http://inventors.about.com/library/inventors/blfabric.htm

http://www.fabriclink.com/university/history.cfm

If your garment does have a fabric content - remember that google is your friend! A lot of companies used new man made fabrics as selling points, and mentioned them in their advertising.

Search the Google News Archives here. This is also a great resource for hunting out companies and brand names.

Care labeling became law in 1971 - but again, just to confuse matters, many companies were already labeling their clothes.

Dating vintage clothing is not easy, and certainly not fool proof - you have to use all the tools you have to pin point an era. For every single rule there's an exception - and often times even experts aren't going to agree.

But if you slowly and methodically take advantage of all the resources, you're more likely to come to an accurate conclusion.