From Stamps of the World
Stirling; Scots: Stirlin; Scottish Gaelic: Sruighlea, is a city in central Scotland. The market town, surrounded by rich farmland, grew up connecting the royal citadel, the medieval old town with its merchants and tradesmen, the bridge and the port. Located on the River Forth, Stirling is the administrative centre for the Stirling council area, and is traditionally the county town of Stirlingshire. Proverbially it is the strategically important "Gateway to the Highlands". It has been said that "Stirling, like a huge brooch clasps Highlands and Lowlands together". Similarly "he who holds Stirling, holds Scotland" is often quoted.
In the early 19th century an "exceedingly low" cost steamboat service used to run between Stirling and Newhaven or Granton. The coming of the railways in 1848 started the decline of the river traffic, not least because the Alloa Swing Bridge downstream restricted access for shipping. The railways did provide opportunity too with one Riverside company selling their reaping machines as far afield as Syria and Australia. Similarly, in 1861, a company making baby carriages was set up. These prams were exported to Canada, South America, India and South Africa.
After the blockades of the World Wars there was some increase in the use of the port including a tea trade with India. However with normal shipping lanes open, the growth of the railways including The Forth Rail Bridge, left the harbour uneconomical and by the mid 20th century the port had ceased to operate.