All items are sent parcel post with An Post, Ireland's national postal service. An Post are increasing their prices on 1st March 2022 and there is quite a hike, particularly to Australia, New Zealand and S. America. The prices below in grey are the current prices and the red figures are the new charges which will come into effect on the 1st March. 
Please note that delivery times to England are very slow, often taking three weeks to clear customs. 

Ireland
Tubes and mounts regular post €5
Tubes and mounts tracked and signed €8.50
Framed picture tracked €10

UK
Tubes and mounts regular post €7.00
Tubes and mounts tracked and signed €13.50
Framed picture (11" only)  regular post €15
Framed picture (11" only) tracked and insured €20

Ireland after March 1st 2022
Tubes and mounts regular post €5
Tubes and mounts tracked and signed €8.50
Framed picture tracked €10

UK and Europe after March 1st 2022
Tubes and mounts regular post €8.00
Tubes and mounts tracked and signed €14.00
Framed not send

US, Canada, Asia, Russia after March 1st 2022
Tubes and mounts regular post €12.00
Tubes and mounts tracked and signed €19.00
Framed not sent

Australia, New Zealand, South America after March 1st 2022
Tubes and mounts regular post €18
Tubes and mounts tracked and signed €25
Framed picture - not sent.