Embossed Old Innisbawn Whiskey Bottle, Boyd and Co., Belfast Imperial Pint.

INNISBAWN WHISKEY Bottle.

This green bottle is embossed as follows.

Front shoulder: OLD INNISBAWN.

Middle front: WHISKEY.

Bottom frront; BOYD and Co.

Distillers

BELFAST.

Back shoulder: IMPERIAL PINT.

Bottom: J L and G Co. or something.  Maybe John Lumb and Co.

There are a couple more marks on the bottom after J L and G Co., which I couldn't decipher for sure.  There are several sizable bubbles in the glass.

On the internet I found many examples of ads from Boyd and Co.  Below is one.

Source: Boyd & Co. Old Irish Whisky Belfast, Ireland (rareirishstuff.com)

Here is some information I found.

For about a decade Samuel Wilson Boyd (1860-1932) was Chairman of The Old Bushmills Distillery Company having been the founder and owner of Boyd & Co. Distillers, Belfast. Born in Belfast, his latter years were lived at Fairbourne, Fortwilliam Park in Belfast. He was a member and 'liberal subscriber' at Fortwilliam Presbyterian Church (which closed its doors in 2018).

His first job was with the Belfast spirits firm Mitchell & Co, who also had interests in Glasgow.  Their founder, William Charles Mitchell, was born in Glasgow in 1834 but came to Belfast in the 1860s to manage the 'crowned king' of Ireland's distilleries, Dunville & Co.. Mitchell was a founder of the St Andrew's Society in Belfast.

Around 1902 Boyd bought Thomas Quinn & Co of Hill Street, which later became Boyd & Co. He was chairman of the Ulster Anti-Prohibition Council and also of the Distillers and Wholesale Wine and Spirit Merchants Association.

Source: Presbyterian whiskey - Samuel Wilson Boyd (1860–1932) "... bottled-up happiness, it drives away the heartache..." | Bloggin fae the 'Burn: <i>Ulster-Scots thoughts</i> (clydesburn.blogspot.com)

From that I would guess the bottle shown above would have been manufactured between 1902 and 1932.