Hello and welcome to The House of Chrome.
You are looking at a unique and very practical adapter / line matching transformer made by Archer during the 1980's or 90's. Archer is a Japanese manufacturer that made high quality products. This item was used to get your mic and audio equipment in sync to get the right impedance depending on the mic you were using.
This is an all metal construction with an attractive champagne gold finish.
The male 1/4 inch plugs into your High Z equipment and can allow your male XLR cable from a low Z mic to get on the right setting. It's a High Z to Low Z.
As you can see the item has very lite wear associated for it's age and in excellent working condition.
A great older accessory for anyone who needs it.
As with all my mics and vintage accessories...
I can promise you will be happy with it for the price paid. If not...I have a no hassle return policy. The return shipping will be on you as I believe that's fair but the purchase price would be refunded. Simply return in the same nice condition...period. Check my rating. INTERNATIONAL BUYERS are welcome as well. BUYER MUST PAY WITHIN 24 HOURS or will lose rights to this item, unpaid item report will be filed and will be relisted. If you don't intend on buying this...do not commit to buy please. Domestic buyer will get priority shipping.
If you have any questions feel free to ask and...thanks for looking.