diff --git a/doc/Guidebook.mn b/doc/Guidebook.mn
index f30ab2762..b6ca695b2 100644
--- a/doc/Guidebook.mn
+++ b/doc/Guidebook.mn
@@ -764,10 +764,13 @@ use a menu to pick which object(s) to drop.
 drop only unpaid food.
 .PE
 The last example shows a combination.
-There are three categories of object filtering: class (\(oq!\(cq for
+There are four categories of object filtering: class (\(oq!\(cq for
 potions, \(oq?\(cq for scrolls, and so on), shop status (\(oqu\(cq for
-unpaid, in other words, owned by the shop), and bless/curse state
-(\(oqB\(cq, \(oqU\(cq, \(oqC\(cq, and \(oqX\(cq as shown above).
+unpaid, in other words, owned by the shop), bless/curse state
+(\(oqB\(cq, \(oqU\(cq, \(oqC\(cq, and \(oqX\(cq as shown above),
+and novelty (\(oqP\(cq, recently picked up items; controlled by picking
+up or dropping things rather than by any time factor).
+.lp ""
 If you specify more than one value in a category (such as \(lq!?\(rq for
 potions and scrolls or \(lqBU\(rq for blessed and uncursed), an inventory
 object will meet the criteria if it matches any of the specified
diff --git a/doc/Guidebook.tex b/doc/Guidebook.tex
index 6776779f1..31545dde8 100644
--- a/doc/Guidebook.tex
+++ b/doc/Guidebook.tex
@@ -861,10 +861,14 @@ the bless\-ed/\-un\-curs\-ed/\-curs\-ed groups may be typed.\\
 %.ei
 %.ed
 The last example shows a combination.
-There are three categories of object filtering: class (`{\tt !}' for
+There are four categories of object filtering: class (`{\tt !}' for
 potions, `{\tt ?}' for scrolls, and so on), shop status (`{\tt u}' for
-unpaid, in other words, owned by the shop), and bless/curse state
-(`{\tt B}', `{\tt U}', `{\tt C}', and `{\tt X}' as shown above).
+unpaid, in other words, owned by the shop), bless/curse state
+(`{\tt B}', `{\tt U}', `{\tt C}', and `{\tt X}' as shown above),
+and novelty (`{\tt P, recently picked up items; controlled by picking
+up or dropping things rather than by any time factor).
+%.lp ""
+\\
 If you specify more than one value in a category (such as ``{\tt !?}'' for
 potions and scrolls or ``{\tt BU}'' for blessed and uncursed), an inventory
 object will meet the criteria if it matches any of the specified
diff --git a/src/pickup.c b/src/pickup.c
index 973da2d65..b7282b2c6 100644
--- a/src/pickup.c
+++ b/src/pickup.c
@@ -467,11 +467,13 @@ allow_category(struct obj *obj)
         set_bknown(obj, 1);
 
     /*
-     * There are three types of filters possible and the first and
-     * third can have more than one entry:
+     * Version 3.6 had three types of filters possible and the first
+     * and third can have more than one entry:
      *  1) object class (armor, potion, &c);
      *  2) unpaid shop item;
      *  3) bless/curse state (blessed, uncursed, cursed, BUC-unknown).
+     * Version 3.7 added a fourth:
+     *  4) 'novelty' ('P' for just picked up items).
      * When only one type is present, the situation is simple:
      * to be accepted, obj's status must match one of the entries.
      * When more than one type is present, the obj will now only