The stained-glass conservation viewing

The notice below contains five intentional errors.

Each of the stained-glass panels are being examined during the open session. Visitors must present they're booking confirmation at the desk. A panel will remain supported while it's condition is recorded. The conservator will explain how a previous repair can have an affect on later work. Questions about a panel's history should be directed to the curator, who can advice visitors about the catalogue.

Proofread this notice and write down the correct form of each of its five errors. You do not need to copy out the notice.