PC on a Few Items

Gold:

Cruel Celestial Hammer of Shelter, 19-35dmg, dmg +19% while health above 50%, lengthens deep wound duration on foes by 33%, armour +7 vs physical damage

Blazing Wing Wand of Quickening, 11-22dmg, halves recharge time of spells (10%), inscription; "strength and honour", dmg +14% while health above 50%.

Air Staff of Shelter, 11-22dmg, halves recharge times of spells (20%), energy +10, halves casting time of spells (10%), armour +7 vs physical damage.

Hale Holy Staff, 11-22dmg, halves recharge time of spells (19%), energy +10, halves casting time of spells (10%), health +28.

Hale Bone Staff of Enchanting, 11-22dmg, energy +10, halves casting time of spells (9%), health +27, enchantments last 19% longer.

Shocking Rams Hammer of Warding, 18-34 dmg, dmg +20% while hexed, armour +7 vs elemental dmg.

Green:

Chuurta's Maul, 19-35dmg, dmg +15 while health above 50%, energy gain on hit: 1, energy regeneration: -1, health +30.

Purple:

Clairvoyant Staff of Shelter, 11-22dmg, halves skill recharge of spells (17%), energy +10, armour +6 vs physical damage.

Barbed Bramble Recurve Bow, 15-28dmg, lengthens bleeding by 33%, inscription "measure for measure", highly salvagable.

Protective Icon, energy +8, protection prayers +1 (17%).

Blue:

Healing Ankh of Devotion, energy +11, health +34 while enchanted, inscription; "forget me not", halves recharge of healing prayers spells (11%).

Any advice on the value of these items would be appreciated! Been playing the game on and off for five years or so now and haven't ever really done much trading.

You can merch all, except maybe the green maul for like 2k.

I'm sorry to say Matrix is probably right. Although you did omit requirements for all the items they don't seem like they are worth the effort to sell, apart from possibly the Air Staff. Edit requirements into your original post for more detailed info.