these whimseys were often maritime in origin, usually from Britain from early part of 19 th C. the string is a replacement no doubt.
dimensions - 14.5” by 2” approx. please note pontil mark at one end. lovely aqua colour of glass. have no idea who or where it was made. bought at auction a few years ago. there is another one available at a different price. bought from same auction/collection of Sandra Elliot.